US3600528A
(en)
*
|
1969-09-25 |
1971-08-17 |
Lematex Corp |
Multiple switch construction
|
US3684842A
(en)
*
|
1970-07-01 |
1972-08-15 |
Texas Instruments Inc |
Pushbutton keyboard switch assembly with improved over center diaphragm contact
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US3761944A
(en)
*
|
1971-01-22 |
1973-09-25 |
Alps Electric Co Ltd |
Binary code generator
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US3720938A
(en)
*
|
1971-04-19 |
1973-03-13 |
Lematex Inc |
System for preventing erroneous data output signals from an electrical keyboard
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US3725907A
(en)
*
|
1971-06-01 |
1973-04-03 |
Texas Instruments Inc |
Pushbutton keyboard system
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US3808384A
(en)
*
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1971-06-01 |
1974-04-30 |
Texas Instruments Inc |
Pushbutton keyboard system
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US3839785A
(en)
*
|
1971-06-01 |
1974-10-08 |
Texas Instruments Inc |
Pushbutton keyboard system
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US3858202A
(en)
*
|
1971-06-01 |
1974-12-31 |
Texas Instruments Inc |
Pushbutton keyboard system
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US3721778A
(en)
*
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1971-06-21 |
1973-03-20 |
Chomerics Inc |
Keyboard switch assembly with improved operator and contact structure
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US3697711A
(en)
*
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1971-06-29 |
1972-10-10 |
Sperry Rand Corp |
Snap action switch
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US3737670A
(en)
*
|
1971-07-09 |
1973-06-05 |
Magic Dot Inc |
Touch sensitive electronic switch
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US3879593A
(en)
*
|
1971-07-09 |
1975-04-22 |
Magic Dot Inc |
Membrane switch
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US4000389A
(en)
*
|
1971-08-23 |
1976-12-28 |
Hewlett-Packard Company |
Printed circuit board and contact assembly for keyboard switch assemblies
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US3941953A
(en)
*
|
1971-08-23 |
1976-03-02 |
Hewlett-Packard Company |
Keyboard having switches with tactile feedback
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US3743797A
(en)
*
|
1971-08-30 |
1973-07-03 |
Bell Telephone Labor Inc |
Stroke coded keyboard switch assembly
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FR2152115A5
(fr)
*
|
1971-09-06 |
1973-04-20 |
Olivetti & Co Spa |
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US3743798A
(en)
*
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1971-09-13 |
1973-07-03 |
North American Rockwell |
Elongated spring coil conductors applying tension force to pushbutton actuators in keyboard matrix switch assembly
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US3786205A
(en)
*
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1972-05-11 |
1974-01-15 |
Becton Dickinson Co |
Keyboard switch assembly with movable, multi-contact means and associated swinger portions
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US3911780A
(en)
*
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1972-07-17 |
1975-10-14 |
Hammond Corp |
Arpeggio keyboard
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US3777082A
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*
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1972-09-08 |
1973-12-04 |
Donnelly Mirrors Inc |
Keyboard switch assembly with improved movable contact having cantilever supported central member with radially extending contact fingers
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US3784765A
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*
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1972-09-20 |
1974-01-08 |
Scope Inc |
Manually adjustable multiposition switch
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*
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1972-10-11 |
1974-03-19 |
Bell Telephone Labor Inc |
Keyboard switch assembly with conductive diaphragm operators and rotary switch operators for adjustably selecting a multidigit number
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IT972200B
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1972-10-16 |
1974-05-20 |
Sits Soc It Telecom Siemens |
Tastiera per un dispositivo di se lezione per sistemi di telecomuni cazioni
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*
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1972-11-13 |
1974-03-26 |
Becton Dickinson Co |
Low profile keyboard switch assembly with snap action cantilever contact
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BE795425A
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*
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1972-11-20 |
1973-05-29 |
Texas Instruments Inc |
Systeme perfectionne de clavier a boutons-poussoirs
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JPS4986885A
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1972-12-26 |
1974-08-20 |
|
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USRE30923E
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1973-01-02 |
1982-05-04 |
Bowmar Instrument Corporation |
Calculator keyboard switch with disc spring contact and printed circuit board
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*
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1973-02-20 |
1975-10-07 |
Matsushita Electric Ind Co Ltd |
Keyboard switch for desk top electronic calculators
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*
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1973-03-08 |
1974-06-25 |
Cherry Electrical Prod |
Matrix keyboard assembly
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JPS49132572A
(fr)
*
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1973-04-24 |
1974-12-19 |
|
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GB1435171A
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*
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1973-05-11 |
1976-05-12 |
Sumlock Anita Electronics Ltd |
Keyboards
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1973-05-23 |
1974-09-24 |
Switches Inc |
Actuating means for warning devices
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1973-06-14 |
1974-12-10 |
Amp Inc |
Multiple circuit selector switch assembly having movable contact means adapted to retain itself in closed circuit position
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1973-07-30 |
1974-12-31 |
Staco Switch Inc |
Pushbutton with spring contactor
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JPS5060564U
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1973-09-29 |
1975-06-04 |
|
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JPS5444212Y2
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1973-10-12 |
1979-12-19 |
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*
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1973-10-31 |
1975-04-22 |
Essex International Inc |
Tactile keyboard switch assembly with metallic or elastomeric type conductive contacts on diaphragm support
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1974-03-01 |
1980-07-08 |
Montgomery Edward B |
Data input system
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AT337275B
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1974-05-07 |
1977-06-27 |
Preh Elektro Feinmechanik |
Ultraschall-fernbedienungseinrichtung
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JPS5117759U
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1974-07-26 |
1976-02-09 |
|
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1974-08-08 |
1975-09-30 |
Amp Inc |
Keyboard assembly with foldable printed circuit matrix switch array, and key actuator locking slide plate
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JPS5125781A
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*
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1974-08-28 |
1976-03-02 |
Tokai Communication Ind |
Suitsuchiban no seizohoho
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1974-09-05 |
1976-12-07 |
Texas Instruments Incorporated |
Motor protector apparatus
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*
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1974-09-23 |
1976-07-06 |
Xerox Corporation |
Keyboard switch assembly having movable contact, and supporting helicline type legs disposed co-planar to common conductive sheet
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US3947390A
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*
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1974-09-23 |
1976-03-30 |
Xerox Corporation |
Arch shaped snap-type switch contact
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US4005293A
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*
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1974-11-29 |
1977-01-25 |
Texas Instruments Incorporated |
Pushbutton keyboard switch assembly having individual concave-convex contacts integrally attached to conductor strips
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JPS5170471A
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*
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1974-12-13 |
1976-06-18 |
Sharp Kk |
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JPS5190072U
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1975-01-16 |
1976-07-19 |
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JPS5190484U
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1975-01-20 |
1976-07-20 |
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JPS5192669U
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1975-01-24 |
1976-07-24 |
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1975-02-03 |
1976-08-03 |
Texas Instruments Incorporated |
Pushbutton keyboard assembly having pole and inner contacts simultaneously engaged by a bridging contact
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US3971902A
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1975-03-21 |
1976-07-27 |
Amp Incorporated |
Keyboard switch assembly having one piece plural pushbutton actuator and resilient mounting structure for plural cantilever beam contacts
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US3995126A
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1975-04-03 |
1976-11-30 |
Magic Dot, Inc. |
Membrane keyboard apparatus
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JPS51124485U
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1975-04-04 |
1976-10-08 |
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CA1034175A
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1975-04-16 |
1978-07-04 |
Pak-Jong Chu |
Commutateur a bouton-poussoir a contacts multiples
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1975-04-18 |
1977-06-14 |
Northern Electric Company Limited |
Multi-contact push-button switch and plural embodiment for keyboard switch assembly
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US3996429A
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1975-04-18 |
1976-12-07 |
Northern Electric Company Limited |
Multi-contact push-button switch having plural prestressed contact members designed to provide plural circuit simultaneous switching inputs
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CH591724A5
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1975-05-23 |
1977-09-30 |
Suisse Horlogerie |
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1975-06-09 |
1977-05-10 |
Litton Systems, Inc. |
Switch assembly having electrically illuminated character display devices between transparent actuators and switch arrays
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1975-06-12 |
1976-10-19 |
Globe-Union Inc. |
Membrane switch apparatus having sequential bridging contact arrangement
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JPS522267U
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1975-06-24 |
1977-01-08 |
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1975-07-30 |
1976-12-21 |
Burroughs Corporation |
Low profile tactile feedback keyboard switch assembly
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US4028509A
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1975-08-29 |
1977-06-07 |
Hughes Aircraft Company |
Simplified tabulator keyboard assembly for use in watch/calculator having transparent foldable flexible printed circuit board with contacts and actuator indicia
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1975-11-13 |
1982-12-28 |
Tektronix, Inc. |
Electrical connector
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GB1539470A
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1975-11-13 |
1979-01-31 |
Tektronix Inc |
Electrical connector
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JPS5278775U
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1975-12-10 |
1977-06-11 |
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JPS52116127U
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1976-02-27 |
1977-09-03 |
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JPS52104767A
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*
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1976-02-28 |
1977-09-02 |
Kyodo Printing Co Ltd |
Printed keyboard
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1976-04-28 |
1979-03-20 |
Otterlei Jon L |
Flexible keyboard switch with integral spacer protrusions
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1976-06-21 |
1978-07-04 |
National Semiconductor Corporation |
Key board switch assembly having canti-levered leaf spring contact assembly on common conductive frame
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1976-12-06 |
1978-04-25 |
Texas Instruments Incorporated |
Keyboard apparatus
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1976-12-06 |
1978-04-11 |
Rca Corporation |
Switch mechanism for a calculator type keyboard
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FI64477C
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1976-12-06 |
1983-11-10 |
Rca Corp |
Tryckkopplare
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NO142151C
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1976-12-20 |
1980-07-02 |
Ring System Maskiner Gustav |
Trykknappanordning for tastbord eller liknende som er stoept i ett stykke av et fjaerende materiale
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JPS5412067U
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1977-06-27 |
1979-01-26 |
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1977-10-13 |
1978-11-28 |
Sheldahl, Inc. |
Tactile touch switch panel
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1977-10-25 |
1980-03-18 |
W. H. Brady Co. |
Control panel overlay
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JPS5629859Y2
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1978-03-07 |
1981-07-16 |
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1978-06-26 |
1980-10-14 |
Hitachi, Ltd. |
Compact keyboard structure
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JPS587556Y2
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1978-11-08 |
1983-02-09 |
日産自動車株式会社 |
絵表示スイツチ
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1979-01-05 |
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Mattel, Inc. |
Switch apparatus
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FI66501C
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1979-04-06 |
1984-10-10 |
Autophon Ag |
Tryckknappsstroemstaellare
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JPS5852981Y2
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1979-08-10 |
1983-12-02 |
松下電器産業株式会社 |
プッシュオン式スイッチ
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1979-12-03 |
1987-10-13 |
Texas Instruments Incorporated |
Keyboard apparatus and method for making same
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JPS5755017A
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1980-09-18 |
1982-04-01 |
Nippon Mektron Kk |
Panel keyboard
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1981-03-16 |
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Molded keyboard and method of fabricating same
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1981-03-16 |
1987-05-12 |
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Molded keyboard and method of fabricating same
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JPS5810335U
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1981-07-15 |
1983-01-22 |
信越ポリマ−株式会社 |
薄型キ−ボ−ド装置
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DE3140771C2
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1981-10-14 |
1983-11-24 |
Rudolf Schadow Gmbh, 1000 Berlin |
Mehrfach-Flachschalter
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1982-06-10 |
1984-07-31 |
Toho- Polymer Kabushiki Kaisha |
Membrane switch having spacer posts
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1983-02-24 |
1985-01-08 |
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Key switch having an actuator integral with the return spring
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1983-05-26 |
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Electronic pen with switching mechanism for selectively providing tactile or non-tactile feel
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Printed circuit board for activating and deactivating alarm systems
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Digital joystick controller
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Spiral spring keyboard switch with hairpin spring tactile feedback
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1984-05-12 |
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電子卓上計算機
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1984-06-20 |
1989-11-27 |
Sterner Franz |
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1984-09-29 |
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Method and apparatus for sensing tactile forces
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Sicherheits-folientastatur
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1986-04-17 |
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Membrantastatur
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Flexible membrane keyboard
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1999-02-01 |
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Telefonaktiebolaget Lm Ericsson (Publ), Stockholm |
Kommunikationsstation
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Method of manufacturing an input device
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Connection device for computing devices
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Method of manufacturing an input device
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Pressure sensitive key normalization
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Input device writing surface
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Connection device for computing devices
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Audio Feedback
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Window shade keypad functionality
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